Adjustable pendant.



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No. 774,852. A PATENTBD Nov. 15, x1904.

1 E. J. SHAW.

ADJUSTABLE PENDANT.

APPLIOATION FILED MAR. 7, 1903.

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Patented November 15, 1904.

PATENT @Eric-E.

EDWARD JOHN SHAW, OF VALSALL, ENGLAND.

ADJUSTABLE PENDANT.

SPECIFICATION forming part of Letters Patent No. 774,852, dated November15, 1904.

Application filed March 7, 1903.

To a/ZZ whom it may concern:

Be it known that I, EDWARD JOHN SHAW, manufacturer, a subject of theKing of England, residing at Lonsdale House, Lichfield Road, Walsall, inthe county of Stafford, England, have invented a certain new and usefulAdjustable Pendant, of which the following is a full, clear, and exactdescription, and for which I have applied for Letters Patent in GreatBritain, dated January 21, 1903, and in Germany, dated February 2, 1903.

This invention relates to an adjustable pendant for hanging lamps,lamp-shades, covers, bird-cages, and other articles, the pendantconsisting` essentially, of two drums or pulleys mounted on an axlesupported at a determined height and the fiexible connections, whichsuspend, respectively, the lamp and the Y balance-weight, being wound onthe pulleys in opposite directions, so that as one is wound up the otheris unwound.

The invention also comprises means for continuously supplying electriccurrent, oil, or gas to a lamp attached to this double-pulleyV pendant,and other portions relate to a friction or locking device for preventingthe pulleys from rotating when the suspended articles are in the desiredposition and to means for holding the balance-weight centrally above thelamp.

On the annexed drawings, illustrating the invention applied to lamps,Figure l shows one form of the inventionviitted to a hanging oil-lamp.Fig. 2 shows another arrangement of the pulleys supporting a gas-lamp,and Fig. 3 shows a thirdV form of the invention applied to an electricallamp. Fig. 4 is an elevation, part section, of the double pulley drawnon enlarged scale. Fig. 5 is a side view of one of the pulleys. Fig. 6is a sectional elevation of the hollow-axle arrangement for a gas-lamp,and Fig. 7 shows a friction or lockingdevice on the axle. Fig. 8 is aview of agstop device for limiting the upward movement of the iiexibleconnection.

Two grooved drums or pulleys a b. are mounted on a' common axle c, so asto be fast thereto. This axle is supported at a height which may itselfbe permanently or adjustably fixed, as will be understood. In Fig. l

Serial No. 146,639. (No model.)

this axle is shown connected to a vertical pipe (l, secured to aceiling-rose and passing between the separate pulleys. In Fig. 2 thepulleys are arranged contiguous to each other, and the axle is supportedby a forked arm e. A flexible connection f g is secured upon each of thepulleys, these connections being wound in opposite directions and theirfree ends being secured, respectively, to a lamp and to abalance-weight. In Figs. l and 2 the balance weight is independent ofthe lamp; but in Fig. 3 it is shown hollowed centrally and arranged toslide upon the lamp connections. In Fig. 3 also two rollers b, pivotedon a forked arm mounted loosely on the axle c, serve asguides for theconnections f g. It will be seen, therefore, that as one connection, f,is pulled down, rotating the pulley a, theother connection, g, is coiledupon the pulley because the pulleys a Z) rotate in the same direction;but the connections f g are wound inversely. Preferably the doublepulley is formed as shown in Fig. 4, the pulleys being formed by acommon disk forming a partition, and the pulleys and axle rotate in theforked arms e.

' Where an electric lamp is suspended from the pendant, (see Fig. 4,)the leads may pass down the pipe l and one of the arms e, electricalcontact being made in any ordinary manner between the axlec and theconnection f, supporting the lamp. This connection may be a flexiblemetallic pipe or a cloth-covered rubber pipe containing the electricalconductors supplyingthe lamp with energy. In the case of a gas-lamp,either household gas or acetylene gas, the service-pipe Z communicateswith one of the hollowarms e, and this supplies gas to the hollow axlec. (See Fig. 6.) VIn the arrangement thereillustrated an annularV groovet' is formed on the periphery of the axle c, forming a continuation ofthe passage in. e, and an orifice 7c leads from this groove to theinterior of the axle. The pulley a is provided with a central chamber Z,fitted with an indentation m, to which the iexible-pipe connection f isattached. This indentation is perforated to allow communication betweenthe interior of the chamber Z and the pipef, as will be seen in Fig. 5,a por- IOO Y tion of the side of the chamber having' been torn away. Aflexible pipe f is used, which will not be crushed and impede the flowof gas. A flexible metallic pipe is suitable. A second oriiice n isformed in the axle within the chamber Z, and gas passes from the axle cinto chamber Z through this orifice a. In the case of an oil-lamp asimilar continuous feed may be provided under pressure of a head of oil,the usual precautions against overflow being taken.

In Fig. 7 friction-plates o are mounted on the axle to preventunintentional rotation of the pulleys a and b in their forked supports.

rI`he stop device (shown in Fig. 8) consists of a nntp, screw-threadedinternally and screwed upon the flexible metallic pipe. Its upper face2)/ is curved to the periphery7 of the pul ley b, so that when the stopj) rises with the flexible connection g it meets the pulley I) and byfrictional engagement checks further upward movementof the dependentconnection g.

The pulleys a may be of' equal size, or one may be larger in diameterthan the other. In the latter case the balance-weight is preferablysecured to the flexible connection coiled upon the smaller pulley.

Having thus described my invention, what I claim as such, and desire tosecure by Letters Patent, is-- l. A pendant comprising an axle, asupport for said axle` said axle being journaled in said support,grooved pulleys upon said axle, said pulleys being rotatable with saidaxle, flexible connections coiled upon said pulleys, said connectionsbeing formed of flexible metallic tubing and wound inversely upon saidpulleys and adjustable stops screwed upon said iexible metallic tubes,said stops being shaped upon their upper faces to the curve of thepulley-rims.

2. A pendant for gas-lamps comprising a hollow axle, a forked supportfor the ends of EDWARD JOHN SHAW.

Witnesses:

WVM. E. GODFREY, SYDNEY H. PENN.

